Eight of us had a successful trip recently to North and South Manitou Islands in Lake Michigan, which are part of the Sleeping Bear Dunes National Lakeshore. An extended trip report with relevant links is here:
http://caskaorg.typepad.com/caska/2009/07/manitou-islands-2009-trip-best-trip-from-hell-i-ever-had.html
Awesome
Looks like you guys had a great paddle and took some awesome photos.
-James
http://www.adventurecanoe.com